[PATCH/RFC] drm/radeon: ACPI: veto the keypress on ATIF events

[Alex Deucher]

On Thu, Aug 2, 2012 at 9:40 PM, Zhang Rui <rui.zhang at intel.com> wrote:
> On 四, 2012-08-02 at 15:46 +0200, Luca Tettamanti wrote:
>> On Thu, Aug 02, 2012 at 08:45:30AM +0800, Zhang Rui wrote:
>> > On 三, 2012-08-01 at 15:49 +0200, Luca Tettamanti wrote:
>> > > AMD ACPI interface may overload the standard event
>> > > ACPI_VIDEO_NOTIFY_PROBE (0x81) to signal AMD-specific events. In such
>> > > cases we don't want to send the keypress (KEY_SWITCHVIDEOMODE) to the
>> > > userspace because the user did not press the mode switch key (the
>> > > spurious keypress confuses the DE which usually changes the
>> > > display configuration and messes up a dual-screen setup).
>> > > This patch gives the radeon driver the chance to examine the event and
>> > > block the keypress if the event is an "AMD event".
>> > >
>> > > Signed-off-by: Luca Tettamanti <kronos.it at gmail.com>
>> > > ---
>> > > Any comment from ACPI front?
>> > >
>> > it looks good to me.
>> > But I'm wondering if we can use the following code for ACPI part, which
>> > looks cleaner.
>> > I know this may change the behavior of other events, but in theory, we
>> > should not send any input event if we know something wrong in kernel.
>> >
>> > what do you think?
>>
>> I like it, it's cleaner.
>> I've split the patch in two pieces (one for video, the other for
>> radeon) and adopted your suggestion.
>>
> Great.
> Acked-by: Zhang Rui <rui.zhang at intel.com>
>
> hmm, who should take these two patches?

I'm happy to take the patches.

> and which tree the second patch is based on?

I've got a tree with all the radeon ACPI patches on the acpi_patches
branches of my git tree:
git://people.freedesktop.org/~agd5f/linux

Alex

>
> thanks,
> rui
>